Is this sentence correct?

[Zoe2008]

Kindly follow with the buyer of return payment. Looking for your futher confirmation / advise.

 

[Route21]

Hi Zoe

Not sure exactly what you are trying to say, but suspect what you mean is:

Kindly expedite the return of the buyer's payment and keep me posted on the status of the situation.

Hope this helps
Best regards
R21